<style>
  html,
  body,
  #storybook-root,
  #sigma-container {
    width: 100%;
    height: 100%;
    margin: 0 !important;
    padding: 0 !important;
    overflow: hidden;
  }
  #loader {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4em;
  }
</style>
<div id="sigma-container"></div>
<div id="loader"><span>⌛</span></div>
